CN109585071A - A kind of resistance to lightning impulse thunder-lightning cable and preparation method - Google Patents
A kind of resistance to lightning impulse thunder-lightning cable and preparation method Download PDFInfo
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- CN109585071A CN109585071A CN201811531914.5A CN201811531914A CN109585071A CN 109585071 A CN109585071 A CN 109585071A CN 201811531914 A CN201811531914 A CN 201811531914A CN 109585071 A CN109585071 A CN 109585071A
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
- H01B13/262—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping of an outer metallic screen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
A kind of resistance to lightning impulse thunder-lightning cable and preparation method thereof, thunder-lightning cable innermost layer are crosslinked polyetylene insulated filled core, and copper wire, which is dredged to dredge around conductor, is wound on the crosslinked polyetylene insulated filled core outer layer, and copper strips lapping layer is dredged around the copper wire around conductor outer layer；Around the copper strips lapping layer outer layer, copper wire is dredged to be arranged around conductor shield in the crosslinked polyetylene insulated layer outer layer crosslinked polyetylene insulated layer；Copper strips lapped shielding layer is dredged around the copper wire around conductor shield outer layer, and oversheath is coated on the copper strips lapped shielding layer outer layer.This kind of cable has resistance to HI high impact voltage capability, and suitable for the equipment such as signal transmitting, electric power transmission lead, which can improve Earthing Reliability, reduce lightning current and ground potential, prevents counterattack and step voltage, avoids or reduces the generation of lightening hazard.
Description
Technical field
The present invention designs field of cable technology, specifically designs a kind of lightning protected cable of resistance to lightning impulse and preparation method thereof.
Background technique
It is well known that thunder and lightning generates huge electric current as a kind of unpredictalbe weather phenomenon of nature, in lightning strike spot
It flows through, and inevitably thunder discharge all has a great impact or even destroys for fields such as electric power, communication, buildings, because
And it is hit object or cable jacket and is easily damaged in lightning stroke process.Therefore a kind of resistance to lightning impulse is just needed in connection electrode
Thunder-lightning cable.
Currently, the design defect and deficiency, traditional cable line of domestic cable industry lightning protected cable generate very when being struck by lightning
Big lightning wave invades substation or building along route, metallic conduit etc. and causes cable premature breakdown.
Therefore, problem of the existing technology, it is to be further improved and developed.
Summary of the invention
(1) goal of the invention: in order to solve the above-mentioned technological deficiency and its technical problem occurred in the prior art, the present invention
A kind of resistance to lightning impulse lightning protected cable and preparation method thereof is provided.
(2) technical solution: to solve the above-mentioned problems, the technical program provides a kind of thunder-lightning of resistance to lightning impulse cable,
It dredges including crosslinked polyetylene insulated filled core, copper wire and dredges around conductor, copper strips lapping layer, crosslinked polyetylene insulated layer, copper wire around leading
Body shielded layer, copper strips lapped shielding layer and oversheath；
The thunder-lightning of the resistance to lightning impulse cable innermost layer be the crosslinked polyetylene insulated filled core, the copper wire dredge around
Conductor is dredged and is wound on the crosslinked polyetylene insulated filled core outer layer；The copper strips lapping layer is dredged outside conductor around the copper wire
Layer, lapping direction dredge dredging around contrary around conductor with the copper wire；The crosslinked polyetylene insulated layer is coated on the copper
Band wrapping layer outer layer；The copper wire, which is dredged to dredge around conductor shield, is wound on crosslinked polyetylene insulated layer outer layer, dredges around direction and institute
Copper wire is stated to dredge around the thin identical around direction of conductor；The copper strips lapped shielding layer is dredged outside conductor shield around the copper wire
Layer, lapping direction are dredged opposite around conductor shield with the copper wire；The oversheath is coated on the copper strips lapped shielding layer
Outer layer, the jacket material are low smoke halogen-free flame-retardant polyolefin material.
Further, the copper wire, which is dredged, is not more than 81mm around conductor pitch；The copper strips lapping layer carrying rate is not less than
30%；The crosslinked polyetylene insulated layer nominal thickness is between 6.8mm-9.3mm；The copper strips lapped shielding layer carrying rate is not
Lower than 30%；The surface of outer sheath resistivity is not less than 1012Ω·m。
A kind of resistance to thunder impact thunder-lightning cable, including crosslinked polyetylene insulated filled core, copper wire are thin wrapped around conductor, copper strips
Layer, crosslinked polyetylene insulated layer, copper wire are dredged around conductor shield, copper strips lapped shielding layer and oversheath；
The crosslinked polyetylene insulated filled core is prepared using cross-linking production line equipment, and when extrusion, fuselage leads sebific duct and machine
Head temperature of each section control squeezes out outer diameter cylindrical degree error and is not more than 0.1mm at 80-120 DEG C.
Further, the copper wire, which is dredged, uses annealed copper line around conductor, dredges between copper wire and is not more than 2mm around gap；
The copper strips lapping layer uses width for 30mm, with a thickness of the copper strips of 0.15mm.
Further, it is left-hand that the copper wire, which is dredged around dredging around direction for conductor, and the copper strips lapping layer lapping direction is the right side
To it is left-hand that the copper wire, which is dredged and dredged around conductor shield around direction, and the copper strips lapped shielding layer lapping direction is dextrad.
Or it is dextrad that the copper wire, which is dredged around dredging around direction for conductor, the copper strips lapping layer lapping direction is left-hand, described
It is dextrad that copper wire, which is dredged and dredged around conductor shield around direction, and the copper strips lapped shielding layer lapping direction is left-hand.
Further, include the following steps:
S1: crosslinked polyetylene insulated filled core unwrapping wire, crosslinked polyetylene insulated filled core tension force, stranding machine dredge around,
Winding machine is wrapped, catenary suspension type continuous vulcanization extruder extrusion molding, obtains primary molding cable core；
S2: by primary molding cable core obtained in S1 carry out secondary stranding machine dredge it is wrapped around, secondary winding machine
A kind of thunder-lightning of resistance to lightning impulse cable of the invention is obtained with oversheath is squeezed out；
S3 prints a kind of thunder-lightning of the resistance to lightning impulse cable obtained in S2 through dragger, meter counter metering, cable
Word coding and admission machine winding displacement obtain finished product.
Further, stranding machine is thin opposite with winding machine lapping direction around direction in S1；Secondary stranding machine is dredged around side in S2
To opposite with secondary winding machine lapping direction；Stranding machine in S1 dredge around with the secondary stranding machine in S2 dredge around direction be same
To dredging around angle is 45 °.
Crosslinked polyetylene insulated filled core is arranged using catenary suspension type continuous vulcanization sulfuration process in further S1 and is dredged in the copper wire
Around the internal layer of conductor, the crosslinked polyetylene insulated filling core diameter is 13.5 ± 0.05mm.
Further, the oversheath of extrusion is evenly coated at the copper using halogen-free and low-smoke flame-retardant polyolefin material
Outer layer with lapped shielding layer.
(3) the utility model has the advantages that the present invention provides a kind of thunder-lightning of resistance to lightning impulse cables and preparation method, You Duogen to move back
The copper wire made of fiery annealed copper wire is dredged around conductor shield, and the copper wire, which is dredged to dredge to dredge around shielded layer around conductor, is wound on the crosslinking
Polyethylene layer outer layer, dredged with internal layer by annealed copper thread copper wire it is identical around direction around dredging for conductor, and dredge around
Angle is 45 DEG C, to offset the magnetic field mutually generated, to guarantee cable running safety.It is verified to be higher than standard GB/T/T
13 impulse voltage test of table 12706.4-2008 (peak value) 200kV；Therefore this kind of cable has resistance to HI high impact voltage capability, tension
Effect is good, which can improve Earthing Reliability, reduce lightning current and ground potential, prevents counterattack and step voltage, avoids
Or the generation of lightening hazard is reduced, to protect the normal use of conducting wire.Thunder and lightning is prevented and reduced to power communication and each
It is endangered caused by kind building, protects the safety of life and property of the people.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of the thunder-lightning of resistance to lightning impulse cable；
Fig. 2 is a kind of diagrammatic cross-section of the thunder-lightning of resistance to lightning impulse cable.
The crosslinked polyetylene insulated filled core of 1-；2- copper wire is dredged around conductor；3- copper strips lapping layer；4- is crosslinked polyetylene insulated
Layer；5- copper wire is dredged around conductor shield；6- copper strips lapped shielding layer；7- oversheath.
Specific embodiment
The present invention is described in further details below with reference to preferred embodiment, is elaborated in the following description more
Details to facilitate a thorough understanding of the present invention, still, the present invention obviously can be come with a variety of other modes different from this description
Implement, those skilled in the art can without violating the connotation of the present invention according to practical situations make it is similar promote,
It deduces, therefore should not be limited the scope of the invention with the content of this specific embodiment.
Attached drawing is the schematic diagram of the embodiment of the present invention, it should be noted that this attached drawing only as an example, not be according to
What the condition of equal proportion was drawn, and should not be construed as limiting in this, as to actual requirement protection scope of the invention.
A kind of resistance to lightning impulse thunder-lightning cable and preparation method thereof, including crosslinked polyetylene insulated filled core, copper wire are dredged
It dredges around conductor, copper strips lapping layer, crosslinked polyetylene insulated layer, copper wire around conductor shield, copper strips lapped shielding layer and oversheath.
The thin copper wire that is wound with of the crosslinked polyetylene insulated filled core outer layer is dredged around conductor, and the copper wire is dredged around conductor pitch not
Greater than 81mm, the every adjacent copper wire, which is dredged, is less than 2mm around conductor gap.The copper wire, which is dredged, is surrounded with copper strips on the outside of conductor
Wrapping layer, the copper strips lapping layer lapping direction and the copper wire, which are dredged, to be dredged around conductor around contrary, and wrapped carrying rate is not less than
30%, control is best between 30~50%.Crosslinked polyetylene insulated layer is successively extruded in copper strips lapping layer outer layer.Extrude thickness
Control is not less than 6.0mm between 6.8~9.3mm at most thin thickness；The copper wire is dredged poly- in crosslinking around conductor shield setting
On the outside of ethylene insulating layer, the copper wire is dredged dredges dredging around direction phase around conductor around direction around dredging for conductor shield with the copper wire
Together, the every adjacent copper wire is dredged controls within 2mm around the conductor gap of conductor shield.The copper strips lapped shielding layer around
Packet is dredged on the outside of conductor shield in the copper wire, and lapping direction is dredged with the copper wire and dredged around conductor shield around direction phase
Instead, wrapped overlap rate is not less than 30%, and control is best between 30~50%.The copper wire dredge around conductor and the copper wire dredge around
Conductor shield dredge around direction be set as in the same direction, dredge around angle be 45 °.The oversheath is halogen-free and low-smoke flame-retardant polyolefin
Material is coated on the outside of the copper strips lapped shielding layer, and the resistivity on surface is not less than 1012Ω·m。
A kind of resistance to lightning impulse thunder-lightning cable and preparation method thereof, the thunder-lightning of the resistance to lightning impulse cable include crosslinking
Polyethylene insulation filled core, copper wire dredge around conductor, copper strips lapping layer, crosslinked polyetylene insulated layer, copper wire dredge around conductor shield,
Copper strips lapped shielding layer and oversheath.The crosslinked polyetylene insulated filled core is prepared using cross-linking production line equipment,
When squeezing out crosslinked polyetylene insulated filled core, fuselage leads sebific duct and the control of head temperature of each section at 80-120 DEG C, meanwhile, outer diameter
Cylindricity error be not more than 0.1mm.The copper wire, which is dredged, uses annealed copper line around conductor material, between copper wire dredge around
Gap is not more than 2mm.The copper strips lapping layer uses width for 30mm, with a thickness of the copper strips of 0.15mm.
When the copper wire dredge around conductor dredge around direction be left-hand when, the copper strips lapping layer lapping direction be dextrad, institute
Stating thin dredge around conductor shield around direction of copper wire is left-hand, and the copper strips lapped shielding layer lapping direction is dextrad.When the copper
Silk dredge around conductor dredge around direction be dextrad when, the copper strips lapping layer lapping direction be left-hand, the copper wire dredge around conductor screen
Covering layer and dredging around direction is dextrad, and the copper strips lapped shielding layer lapping direction is left-hand.
In a kind of resistance to thunder impact lightning protected cable of preparation, comprising the following steps:
S1: the crosslinked polyetylene insulated filled core unwrapping wire, the crosslinked polyetylene insulated filled core tension force.Twisted wire
Machine is dredged around the copper wire is thin thin around the crosslinked polyethylene filled core outer layer around conductor.Winding machine is wrapped, by the copper strips
Wrapping layer is wrapped to dredge to the copper wire around conductor outer layer.Later by the extrusion molding of catenary suspension type continuous vulcanization extruder, primary molding electricity is obtained
Cable core.
S2: by primary molding cable core obtained in S1 carry out secondary stranding machine dredge around, by the copper wire dredge around
Conductor shield is dredged around the primary molding cable core outer layer.It is wrapped to carry out secondary winding machine, by the wrapped screen of the copper strips
Layer is covered to dredge around the copper wire around conductor shield outer layer.Oversheath, which is squeezed out, by extruder obtains a kind of resistance to thunder and lightning of the present invention
Impact lightning protected cable.
S3: by a kind of thunder-lightning of the resistance to lightning impulse cable obtained in S2 by traction machine travel, the metering of machine-processed rice device,
The coding of cable lettering and take-up meter winding displacement obtain finished product.
In the production process, stranding machine is thin opposite with winding machine lapping direction around direction in S1；Secondary stranding machine is dredged in S2
Around opposite with secondary winding machine lapping direction；Stranding machine in step S1 dredge around the copper wire dredge in conductor and step S2
Secondary stranding machine dredge around the copper wire dredge around the direction of conductor shield be it is in the same direction, angle is 45 °；Winding machine in step S1
The wrapped copper strips lapping layer copper strips lapped shielding layer lapping direction wrapped with the secondary winding machine in step S2 is same
Sample is arranged in the same direction.
Conductor is arranged in crosslinked polyetylene insulated filled core using catenary suspension type continuous vulcanization sulfuration process in step S1 to dredge in winding layer
Layer, the crosslinked polyetylene insulated filling core diameter are 13.5 ± 0.05mm.
The oversheath squeezed out in step S2, which uses, uses low smoke, zero halogen polyolefine material, is evenly coated at copper strips lapped shielding layer
Outer layer.
A kind of resistance to thunder impact thunder-lightning cable of the invention and preparation method thereof, You Duogen annealed copper is thread described
Copper wire is dredged around conductor, and the copper wire, which is dredged to dredge around conductor, is wound on the crosslinked polyetylene insulated layer outer layer, soft by annealing with internal layer
Copper wire made of copper wire is dredged around the thin identical around direction of conductor, and dredging around angle is 45 °, thus the magnetic for generation of cancelling out each other
, it ensure that the safe operation of cable.And the ability with high pressure resistant surge voltage, tension effect is good, long service life.Make
The electric property and security performance of cable are provided simultaneously with.
The above content is the explanations of the preferred embodiment to the invention, those skilled in the art can be helped more to fill
The technical solution for dividing ground to understand the invention.But these embodiments are merely illustrative, and it cannot be said that the invention
Specific embodiment be only limitted to the explanations of these embodiments.The invention person of an ordinary skill in the technical field is come
It says, without departing from the concept of the premise of the invention, several simple deductions and transformation can also be made, all shall be regarded as belonging to
The protection scope of the invention.
Claims (10)
1. a kind of thunder-lightning of resistance to lightning impulse cable, which is characterized in that dredge including crosslinked polyetylene insulated filled core, copper wire around leading
Body, copper strips lapping layer, crosslinked polyetylene insulated layer, copper wire are dredged around conductor shield, copper strips lapped shielding layer and oversheath；
The thunder-lightning of the resistance to lightning impulse cable innermost layer is the crosslinked polyetylene insulated filled core, and the copper wire is dredged around conductor
It dredges and is wound on the crosslinked polyetylene insulated filled core outer layer；The copper strips lapping layer is dredged around the copper wire around conductor outer layer,
Lapping direction dredges dredging around contrary around conductor with the copper wire；The crosslinked polyetylene insulated layer be coated on the copper strips around
Covering outer layer；The copper wire, which is dredged to dredge around conductor shield, is wound on crosslinked polyetylene insulated layer outer layer, dredges around direction and the copper
Silk is dredged identical around direction around dredging for conductor；The copper strips lapped shielding layer is dredged around the copper wire around conductor shield outer layer,
Its lapping direction is dredged opposite around conductor shield with the copper wire；The oversheath is coated on outside the copper strips lapped shielding layer
Layer, the jacket material are low smoke halogen-free flame-retardant polyolefin material.
2. a kind of thunder-lightning of resistance to lightning impulse cable according to claim 1, which is characterized in that the copper wire is dredged around conductor section
Away from no more than 81mm；The copper strips lapping layer carrying rate is not less than 30%；The crosslinked polyetylene insulated layer nominal thickness exists
Between 6.8mm-9.3mm；The copper strips lapped shielding layer carrying rate is not less than 30%；The surface of outer sheath resistivity is not less than
1012Ω·m。
3. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable, which is characterized in that a kind of resistance to thunder impact thunder-lightning cable, packet
Include crosslinked polyetylene insulated filled core, copper wire is dredged and dredged around conductor, copper strips lapping layer, crosslinked polyetylene insulated layer, copper wire around conductor
Shielded layer, copper strips lapped shielding layer and oversheath；
The crosslinked polyetylene insulated filled core is prepared using cross-linking production line equipment, and when extrusion, fuselage leads sebific duct and head is each
Duan Wendu is controlled at 80-120 DEG C, is squeezed out outer diameter cylindrical degree error and is not more than 0.1mm.
4. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 3, which is characterized in that the copper wire
It dredges and uses annealed copper line around conductor, dredged between copper wire and be not more than 2mm around gap；The copper strips lapping layer use width for
30mm, with a thickness of the copper strips of 0.15mm.
5. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 3, which is characterized in that the copper wire
Dredging around dredging around direction for conductor is left-hand, and the copper strips lapping layer lapping direction is dextrad, and the copper wire is dredged around conductor shield
Dredging around direction is left-hand, and the copper strips lapped shielding layer lapping direction is dextrad.
6. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 3, which is characterized in that the copper wire
Dredging around dredging around direction for conductor is dextrad, and the copper strips lapping layer lapping direction is left-hand, and the copper wire is dredged around conductor shield
Dredging around direction is dextrad, and the copper strips lapped shielding layer lapping direction is left-hand.
7. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 3, which is characterized in that including as follows
Step:
S1: crosslinked polyetylene insulated filled core unwrapping wire, crosslinked polyetylene insulated filled core tension force, stranding machine dredge around, it is wrapped
Machine is wrapped, catenary suspension type continuous vulcanization extruder extrusion molding, obtains primary molding cable core；
S2: by primary molding cable core obtained in S1 carry out secondary stranding machine dredge it is wrapped and crowded around, secondary winding machine
Oversheath obtains a kind of thunder-lightning of resistance to lightning impulse cable of the invention out；
S3 sprays a kind of thunder-lightning of the resistance to lightning impulse cable obtained in S2 through dragger, meter counter metering, cable lettering
Code and admission machine winding displacement obtain finished product.
8. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 7, which is characterized in that twisted wire in S1
Machine is dredged opposite with winding machine lapping direction around direction；Secondary stranding machine is dredged around direction and secondary winding machine lapping direction phase in S2
Instead；Stranding machine in S1 dredge around with the secondary stranding machine in S2 dredge around direction be it is in the same direction, it is thin around angle be 45 °.
9. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 7, which is characterized in that used in S1
The thin internal layer around conductor of the copper wire, the poly- second of crosslinking is arranged in crosslinked polyetylene insulated filled core by catenary suspension type continuous vulcanization sulfuration process
Alkene insulation filling core diameter is 13.5 ± 0.05mm.
10. a kind of preparation method of the thunder-lightning of resistance to lightning impulse cable according to claim 7, which is characterized in that extrusion
The oversheath is evenly coated at the outer layer of the copper strips lapped shielding layer using halogen-free and low-smoke flame-retardant polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811531914.5A CN109585071A (en) | 2018-12-14 | 2018-12-14 | A kind of resistance to lightning impulse thunder-lightning cable and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811531914.5A CN109585071A (en) | 2018-12-14 | 2018-12-14 | A kind of resistance to lightning impulse thunder-lightning cable and preparation method |
Publications (1)
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| CN109585071A true CN109585071A (en) | 2019-04-05 |
Family
ID=65929640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811531914.5A Pending CN109585071A (en) | 2018-12-14 | 2018-12-14 | A kind of resistance to lightning impulse thunder-lightning cable and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334295A (en) * | 2021-12-30 | 2022-04-12 | 江苏亨通电力电缆有限公司 | System and method for processing copper wire sparse-wound shielding cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714902A (en) * | 2014-01-14 | 2014-04-09 | 深圳市东佳信电线电缆有限公司 | Special-structure environment-friendly power cable for transformer connection |
| CN203839115U (en) * | 2014-05-23 | 2014-09-17 | 四川九洲线缆有限责任公司 | Gap-filling insulating diameter-expanding overhead conductive wire |
| CN204991268U (en) * | 2015-10-21 | 2016-01-20 | 湖北龙腾红旗电缆(集团)有限公司 | Middling pressure variable frequency power cable |
| CN105489306A (en) * | 2016-01-06 | 2016-04-13 | 浙江五丰电缆有限公司 | Shielding structure for medium-voltage cable |
-
2018
- 2018-12-14 CN CN201811531914.5A patent/CN109585071A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714902A (en) * | 2014-01-14 | 2014-04-09 | 深圳市东佳信电线电缆有限公司 | Special-structure environment-friendly power cable for transformer connection |
| CN203839115U (en) * | 2014-05-23 | 2014-09-17 | 四川九洲线缆有限责任公司 | Gap-filling insulating diameter-expanding overhead conductive wire |
| CN204991268U (en) * | 2015-10-21 | 2016-01-20 | 湖北龙腾红旗电缆(集团)有限公司 | Middling pressure variable frequency power cable |
| CN105489306A (en) * | 2016-01-06 | 2016-04-13 | 浙江五丰电缆有限公司 | Shielding structure for medium-voltage cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334295A (en) * | 2021-12-30 | 2022-04-12 | 江苏亨通电力电缆有限公司 | System and method for processing copper wire sparse-wound shielding cable |
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Application publication date: 20190405 |
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